84847447172 has 24 divisors (see below), whose sum is σ = 149926793184. Its totient is φ = 42011517632.

The previous prime is 84847447141. The next prime is 84847447187. The reversal of 84847447172 is 27174474848.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1152863 + ... + 1224249.

It is an arithmetic number, because the mean of its divisors is an integer number (6246949716).

Almost surely, 2^84847447172 is an apocalyptic number.

It is an amenable number.

84847447172 is a deficient number, since it is larger than the sum of its proper divisors (65079346012).

84847447172 is a wasteful number, since it uses less digits than its factorization.

84847447172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74275 (or 74273 counting only the distinct ones).

The product of its digits is 11239424, while the sum is 56.

The spelling of 84847447172 in words is "eighty-four billion, eight hundred forty-seven million, four hundred forty-seven thousand, one hundred seventy-two".